frequent problem. Tighten the screws of the plug properly, to ensure a proper connection to the
board.
2. Checking the generator tube
Mortal danger from electric shock
Exposed power contacts - High Voltage
Ensure that the power switch is at position 3.
Check if the filament of the generator tube glows:
This can be easily checked:
Through the air vent holes of the furnace, the reflected light of the glowing filaments (heater of
the cathode) should be visible.
: Air vent holes of the furnace
3. The filament of the generator tube doesn’t glow
Check the voltage of the filament, on the transformer, there should be 10 V AC on the
secondary. If not, then measure 220 V AC on the primary, leads 2-3.
NOTICE
Set the power switch to pos. 1 before removing the tube, although it would be best to
completely turn off the device and unplug the power cord.
Mortal danger from electric shock
Exposed power contacts - High Voltage
Before touching any components or wiring, make sure the capacitors are discharged.
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